Caddo County, Oklahoma Schools - Richland School Richland school district #20 was organized in 1903 as a part of Caddo County. The first teacher was Edna Whitwell and Marie Clifton was the last. Clifton taught from 1950 until the school was closed in 1952. In 1953 the school was consolidated with Rush Springs School. Richland school was located seven miles west of Rush Springs to the Grady County line and south one mile. ... Gene Phillips